sensory axonal neuropathy symptomssensory axonal peripheral neuropathysensory motor axonal neuropathyaxonal demyelinating neuropathyaxonal peripheral neuropathy treatmentidiopathic axonal neuropathysevere axonal neuropathychronic axonal neuropathydistal axonal neuropathymotor axonal neuropathyaxonal type neuropathyacute axonal neuropathy